Environmental Protection Agency (EPA) is granting a petition submitted by Bayer Material Science LLC (Bayer) to exclude (or delist) a certain solid waste generated by its Baytown, TX plant from the lists of hazardous wastes. This final rule responds to the petition submitted by Bayer to delist K027, K104, K111, and K112 spent carbon generated from the facility's waste water treatment plant. After careful analysis and use of the Delisting Risk Assessment Software (DRAS), EPA has concluded the petitioned waste is not hazardous waste. This exclusion applies to 7,728 cubic yards per year of the spent carbon.